Alois delug



(N0,M0de1.)

A. 'DELUG. CLIP FOR USE IN PHOTOGRAPHIG COPYING. Nd. 485,758.

Patented Nov. 8, 1892.

Event-0 2;

UNITED STATES PATENT OFFICE.

ALOIS DELUG, OF MUNICH, GERMANY.

CLIP FOR USE IN PHOTOGRAPHIC COPYING.

SPECIFICATION forming part of Letters Patent No. 485,758, dated November8, 1892. Application filed March 14, 1892- Serial No. 424,775 (Nomodel.) Patented in EnglandJannary 15, 1892 N0. 865.

To all whom it may concern.-

Be it known that I, ALOIS DELUG, a citizen of the Kingdom of Bavaria,and a resident of Munich, Bavaria, Germany, have invented certain newand useful Improvements in Clamps or Clips for Use in PhotographicCopying Processes, (for which I have obtained a patent in England,No.865, dated January 15, 1892,) of which the following is aspecification.

The clamps or clips employed in copying by photography are open to theobjection that they intercept the light at the point at which they graspthe plate. The objections resulting therefrom are sufficiently familiarto those experienced in the art.

The present invention is designed to produce a copy free from shadows.This is accomplished by a suitable construction of the upper jaw of theclamp, and especially by causing the same to grasp the plate at onepoint only.

The drawings, comprising Figures 1, 2, 3, 4, and 5, show in isometricperspective five different clamps, each of which embodies my invention.

According to Figs. 1, 2, 3, and 4 the same consists in anoutwardly-extending springyoke a, which consists eitherin aplate-spring, as shown in Fig. 1, or is formed of wire, as shown inFigs. 2, 3, and 4. The lower jaw 19 is attached to the upper arm of theyoke a, Fig. 1, and, as. shown in the drawings, is bent downwardly,while the upper clamp-jaw c is bent upwardly and attached to the lowerarm of the yoke a. The clamp-jaw o, as already stated, is so constructedthat it will obstruct as little as possible the passage of the light,and for this purpose it grasps the plate only at a single point of itsupper surface. This is best carried out by constructing the same ofwire, which bears on the plate at right angles to the same, as shown inthe drawings, and bends over and extends downwardly, where itis attachedin the lower arm of the yoke a, Fig. 1. The lower clamp-jaw may consistina broad surface bearing against the plate, or it may engage the plateat only two points, as shown in Fig. 4. According to Figs. 2, 3, and 4:the yoke with the two clampjaws is made from a single piece of wireprovided at g with suitable finger-pieces for manipulating the same,which may be soldered or otherwise secured'to the wire.

Fig. 5 shows another modification embodying my i nvention, comprisingtwo platese,counected by a spiral spring to form a clamp and whose upperplate is provided with a clampjaw 0, similar to that alreadydescribedthat is, consisting of a single piece of wire bearing upon theplate substantially at right angles to the same.

By causing the wire clamp-jaw to bear substantially at right angles uponthe plate and bending over at some distance from the same I am enabledto cause the light to fall upon all points of the plate with theexception of the single contact-point of the upper clampjaw 0 during itsentire exposure.

What I claim, and desire to secure by Letters Patent, is

1. In a clip for photographic copying, the combination, with a fiat jawhaving an extended bearing-surface, of a second jaw consisting of a wirebent at right angles to the first jaw, substantially as set forth.

2. A clip for photographic copying, consisting of a jaw formed of apiece of wire bent in the shape of a flat horizontal loop, as b, incombination with a second jaw formed of a piece of wire having a forwardvertical end adapted to bear on the plate at one point only, the twojaws being connected byan intermediate spring, substantially as setforth.

3. A clip for photographic copying, consisting of a wire one end ofwhich is bent into the shape of a horizontal flat loop, as b, and theother end in the form ofa vertical pin, as c, the wire being bentin theform of a spiral at an intermediate point, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

ALOIS DELUG.

Witnesses:

EMIL HENZEL, KONRAD KRIEG.

